Spinal cord
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Spinal Cord. Cylindrical cord composed of white and gray matter which Functions:. Spinal Cord Anatomy. Internal gray matter of spinal cord is mostly Central canal is . Spinal Cord Anatomy. Dorsal Anterior . Exterior white matter is composed of . Pathway of a Typical Nerve Impulse.

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Spinal Cord

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Spinal Cord

  • Cylindrical cord composed of white and gray matter which

  • Functions:


Spinal Cord Anatomy

  • Internal gray matter of spinal cord is mostly

    • Central canal is


Spinal Cord Anatomy

  • Dorsal

  • Anterior

  • Exterior white matter is composed of


Pathway of a Typical Nerve Impulse


Pathway of a Typical Nerve Impulse


Reflexes

  • 2 Types of Reflexes:

    • Somatic Reflexes –

      • Examples:

    • Autonomic Reflexes –

      • Examples:


Skin

Spinal cord

(in cross section)

Stimulus at distalend of neuron

Sensory neuron

Integrationcenter

Receptor

Motor neuron

Interneuron

Effector

(a)

Reflexes

  • Every reflex arc has the following 5 elements:


Reflex process

Sensory receptors(stretch receptorsin the quadricepsmuscle)

Sensory (afferent)neuron

Spinal cord

Synapse inventral horngray matter

Motor(efferent)neuron

Effector(quadricepsmuscle ofthigh)

(b)


Paralysis

  • Flaccid paralysis –

    • Common causes:

  • Spastic paralysis –

    • Common causes -


Neurological Disorders

  • Research one of the following neurological disorders to present to the class. You should give a general description, causes, symptoms, and treatments. Include a picture as well!

    EpilepsyAutism

    SchizophreniaSpina BifidaParkinson’s DiseaseHuntington’s Disease

    Cerebral PalsyAlzheimer’s Disease


Epilepsy

  • Description:

  • Causes:

  • Symptoms:

  • Treatments:


Schizophrenia

  • Description:

  • Causes:

  • Symptoms:

  • Treatments:


Parkinson’s Disease

  • Description:

  • Causes:

  • Symptoms:

  • Treatments:


Cerebral Palsy

  • Description:

  • Causes:

  • Symptoms:

  • Treatments:


Autism

  • Description:

  • Causes:

  • Symptoms:

  • Treatments:


Spina Bifida

  • Description:

  • Causes:

  • Symptoms:

  • Treatments:


Huntington’s Disease

  • Description:

  • Causes:

  • Symptoms:

  • Treatments:


Alzheimer’s

  • Description:

  • Causes:

  • Symptoms:

  • Treatments:

http://www.alz.org/braintour/healthy_vs_alzheimers.asp


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